Concentrator-table support.



W. L. &; P. S. CARD.

GONCENTRATOR TABLE SUPPORT.

APPLIOATION FILED SEPT. 24, 1908.

Patented Apr. 6, 1909.

2SHEETB-SHEET 1.

mow cow Q/Vi b1 no 7 m wa W. L. & F. S. CARD.

GONGENTRATOR TABLE SUPPORT.

APPLICATION FILED SEPT. 24, 1908. 917,247, Patented Apr. 6, 1909.

2 SHEETS-SHEET 2.

' 1 is a side elevation of a concentrator table WILLIAM L. CARD AND FRANK S.

CARD, OF DENVER, COLORADO.

CONCENTRATOR-TABLE SUPPORT.

Specification of Letters Patent.

Patented April 6, 1909.

Application filed September 2%, 1998. Serial No. 5i,605.

T all whom 'it may concern:

Be it known that we, WrLLixn L. OARD and FRANK S. CARD, citizens of the United States, residing at Denver, in the county of Denver and State of Colorado, have invented certain new and useful Improvements in Concentrator-T able Supports; and we do hereby declare the following to V be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Our invention relates generally to the mannor of mounting concentrator tables which have a longitudinal reciprocatory motion and lateral adjustable inclination, and has for its object to provide means whereby any desired number of flexible table supports may be employed, said supports of any desired length independent of the width of the table, and also whereby the lateral inclination of the table may be adjusted independently of its flexible supports.

To this end, the )rincipal feature of our invention involves the combination with the concentrator table and foundation therefor, of a series of flexible supports secured at or adjacent to their ends to a sub-frame, and at an intermediate point to the cmicentrator table whereby the length of said supports is not limited by the width of the table.

A second feature of our invention involves the provision of a hinge connection between the flexible supports and the table, at point intermediate of the ends of said flexible sup- )orts, whereby the adjustment of the lateral inclination of the table is rendered indepond ent of the flexible supports of the table.

There are other, minor, features of invention embodied in certain combinations and elemental constructions, all as will hereinafter more fully appear.

In the drawings accompanying this specification and forming part of the same, F1gure and its supports embodying our invention. Fig. 2 is a plan view of the sub-frame, table supports, and adjusting devices, the concen trator table omitted. Fig. 3 is an enlarged end View of the concentrator table, its sub frame, and supports, part of the table being broken away. Fig. 4 is an enlarged detail plan View of the flexible table supports together with portions of the table-stringers and channel iron stringers or girders of the sub-frame. Fig. 5 is an enlarged View in elevation of one of the flexible blade clamps and hinge joints whereby the concentrator table is adj ustably supported. on the flexible table support. Fig. 6 is a vertical section of the clamp and hinge joint shown in Fig. Fig. 7 is a transverse section of the cup and pin constituting the hinge joint shown in Figs. 5 and 6.

Like symbols refer to like parts wherever they occur.

i Ve will now proceed to describe the prefer-red form of our invention more fully so that others skilled in the art to which it ap .ertains may apply our invention either in the form. illustrated in the drawing or in such modification thereof as circumstances may dictate.

in the drawings, A, A indicate cross tinibers arranged. on a suitable foundation and forming the supports of the sub frame stringers or girr'lers B, B which latter may be of any suitable character, but are preferably formed of channel iron, as shown in the drawings, as thereby any loss of shape in the subframe and resultant loss of alinement of the working parts is prevented.

Resting upon and secured to the sub-frame stringers 8,3 are a series of cross frames or saddles C, (7, corresponding in number with the number of flexible blade table supports it is. desired to use. As illustrated in the drawings there are three such saddle frames and flexible-blade table supports, but owing to the construction devised by us said num ber may be increased, as may also the length of the saddle frames and flexible blade supports, as conditions may require. These frames, or saddles, may be of wrought iron, but are preferably of cast metal of a length commensurate with the length of the flexible table supports it is desired to employ, and at the opposite ends of said frames they are provided With stubs or posts 0 for the attachment of said flexible table supports, which stubs or posts are pierced for the passage of the bolts 0 whereby the flexible blades or table supports are attached thereto, and are rounded on the face with which the flexible blade contacts so as to permit the unobstructed flexure of said support or blade.

The stubs or posts 6 may be formed independent of frame orrsaddleC and;'-atta ched thereto by suitable means, as shown in the drawings, or, if preferred, may be formed integral with the frame or saddle C.

D, D indicate the horizontally disposed flexible supports for the concentrator table, which arepreferably in the form of spring steelblades widest at mid-length and decreasing in width toward the ends, and are arranged on edge or vertically as to their .widthsinthe: saddles or frames 0, C, to the posts 0 c of whichthe. blades are secured at or adjacent to their ends as hereinb efore noted. To theseiiexible spring-blades, at

mid-length, the table is connected along its longitudinal. central line by suitable clamp and hinge connections, E, I so that the flexiblespr-ing blades D, D.will vibrate in the direetion of:the length ofthe table, andgthe table-will be adjustable with relationto the flexible blades.

.The preferred. form of clamp and hinge connection is one wherein the clamp is composed oftwo members (oi-plates) c and c which. span the flexible-blade and are connected above and-below the same by bolts 0 .or in other suitable manner. Leather or an equivalent;packing e. may be interposed between vthe clampmembers and the flexible blade D.

Upon the upper end of clamp member a is provided .a transversely disposed-segmental cylindrical cup or socket dfor the reception of the cylindrical pin member of the hinge, whichdatter is attached; to the underside of the concentrator table. The ends of said cup orsocket d arepierced for the passage of set screws (1 for securing thepintle. This construction VillzHOt only prevent any longitudinal movement or lifting of theparts, but will atthe same time maintain the verticalapositionof-the'fiexible blade D at its mid-length as well as at its ends.

F indicates-the concentrator table and f, f

.the stringers thereof. On the ,undersideof thev table F, andextending between the stringers:f, f thereof areliron cross-bars or straps G attachedto said stringers and which afford attachment for the pinmembers of the hinges along the ,median line of the concentrator table. These cross-bars may have a slight camberasrindicated in the drawings.

.;g indicates the cylindrical pin member of the hinge joint provided with straps or, plates 9 .by-means of which it may beconnected to the cross-bars or'straps G, andthussupport the concentrator table from, the .iiexible spring iblade .D. These centrally disposed hingejoints E,.Epermit the. lateraltilting of the itable to any desiredinclination, and in order .toadjust the table and secure it. after adjustment .in such manner .that its .re- .ciprocatory imotion @Will :not be interfered with, an adjusting mechanism H located on theffounda'tion isprovided.

The adjusting mechanism of the table comprises a post,-supported.on the foundation or at some other suitable point off of and to one side of the table, a threaded shaft, a nut which travels thereon, and a spring rod. The threaded rod 1 is stepped at its lower end and loosely journaled on the post I at its upper end, and is'provided with a suitable hand wheel i by means of which it maybe rotated. Upon said threaded rod orshaft l is an internally threaded sleeve or nut K which is attached by a suitable clamp 7c one end of a spring-rod L, said rod having one or more coils l, the opposite end. of which spring-rod is secured to the side of the concentrator ta ble by means of a pivot joint Z, or in any other suitable manner which will not impede the movement ofthe table and yet effect. a positive connection between the concentrator table. and said. rod L.

Properly supported by and positioned on the stringers or girdersB, B of: the sub frame is suitable mechanism M for imparting a longitudinal movement-to the concentratontahle and a return spring m, or its equivalent, may also be provided for effecting the return movement of the table, and these are in alinement with the l'iinge'connections between the concentrator table andthe'rlexible blade supports therefor.

The construction and. arrz-Lngement of the several elements of the structure being substantially. such as 1 hereinbefore pointed out the operation of the devices will be.-as.follows: When reciprocatory.movement is imparted to the concentrator table thereis a flexure. in. one direction. of the. flexible blades D, D corresponding to the movement of the table, and thereafter areaction which suppleinentsthe operation of the return spring m, and may-under certain conditionsberelied on as a substitute for the return spring. The adjustment of the lateralinelination of the table will be effected by a rotation ofthe hand wheel i and the threaded rod I which causes the upward or downward movement of thesleeve or nut'K, according to the direction. in :which the hand'wheel is rotated, and the corresponding=movement ofthe-spring rodL=andthe side of thetable .F awn-a1 said rod is attached. :The spring-rodL with its pivotal connection withthetable permits the unhampered movement of the table, while maintaining the adj ustment' thereof.

Among the advantages incidenttoourarrangement of the connections between the flexible supports, table, and sub.-fran1e,=ar.e, first, thatthe length of thesupportsarenot limited by the width of the table, second, the adjustment'of the lateral inclination-of the table is independent of the: flexible :supports, and, third, .theinclination .ofithe table table which would be detrimental to stratiflcation of the concentrates.

Havlng thus described our invention, what we claim and desire to secure by Letters Patent is:

1. The combination with a concentrator table and its sub-frame, of interposed flexible blades secured to said table at mid-length and to the sub-frame adjacent to their ends, said blade being arranged to vibrate in the direction of the length of the table, and said table, being adjustable with respect to said blades.

2. The combination with a concentrator table and its sub-frame of interposed flexible blades having hinged connection with the table at their mid-lengths and attached to the sub-frame adjacent to their ends.

3. The combination with a concentrator table and its sub-frame of a saddle frame supported by the sub-frame, a flexible-blade secured to the saddle frame adjacent to its 0 posite ends and to the table intermediate of its ends.

a. The combination with a concentrator table and its sub-frame, of a saddle frame supported on said sub-frame and provided at its opposite ends with stubs or posts, a vertically disposed flexible-blade secured at its ends to said stubs or posts and at an intermediate point to the concentrator table.

5. The combination with a concentrator table and its sub-frame, of interposed flexible blade supports having hinged connections at their mid-lengths with the table and connected adjacent to their ends with the subframe, and means supported at a point off the table for adjusting and maintaining the lateral inclination of the table.

6. The combination with a concentrator table and a horizontally disposed flexible support therefor, said support secured adjacent to its ends, of a clamp secured to the flexible support intermediate of its ends, and

a segmental cylindrical cup and cylindrical pintle hinge connection between the table and clamp.

7. The combination with a concentrator table and a horizontally disposed flexible support therefor, said support secured adjacent to its ends, of a clamp secured to the flexible support intermediate of its ends, a segmental cylindrical cup and cylindrical pintle hinge connection between the clamp and table, and set screws in the ends of the cup member of the hinge which engage the ends of the cylindrical pintle member of said hin e.

8? The combination with a concentrator table, and horizontally disposed flexible supports therefor, said table and flexible supports being relatively adjustable, and said flexible supports being arranged to vibrate in the direction of the length of the table, of an adjusting mechanism comprising a threaded rod, a nut operated by said rod, and a spring rod provided with a coil and having its ends res ectively connected with the concentrator tab e and the nut operated by the threaded rod.

9. The combination with a concentrator table and its sub-frame, of flexible supports secured to the sub-frame adjacent to their ends, said table and said supports being relatively adjustable and the central portions of said supports being movable longitudinally with and in the line of movement of the table.

10. The combination with a concentrator table of horizontally disposed flexible supports, the central portions of said supports being movable with the table, and the flexible supports being arranged to vibrate in the di rection of the length of the table.

In testimony whereof we aflix our signatures, in presence of two subscribing witnesses.

WILLIAM L. CARD. FRANK S. CARD. Witnesses JAMES N. FLoon, FRANK B. MOFARLANE. 

